{"product_id":"catholyte-reservoir","title":"Catholyte Reservoir","description":"\n\u003ch2 id=\"product-oneliner\"\u003eCatholyte Reservoir for MEA Electrolyzers and GDE Flow Cells\u003c\/h2\u003e\n\u003cp class=\"text-center\"\u003eA 5-port Electrolyte Reservoir\/Tank supporting storage, circulation, ventilation, and in-line monitoring\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"text-center\"\u003e\u003ca href=\"#specification\"\u003eSpecifications\u003c\/a\u003e | \u003ca href=\"#included\"\u003eIn the Box\u003c\/a\u003e | \u003ca href=\"#gallery\"\u003eGallery\u003c\/a\u003e | \u003ca href=\"#pricing\"\u003ePricing\u003c\/a\u003e | \u003ca href=\"#related-products\"\u003eRelated Products\u003c\/a\u003e | \u003ca href=\"#technical-support\"\u003eTechnical Support\u003c\/a\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cp class=\"MsoNormal\"\u003eThe Catholyte Reservoir is a 100 mL reservoir designed to circulate catholyte through GDE flow cells and MEA electrolyzer systems. With five ports, it supports simultaneous electrolyte circulation, gas venting, and in-line monitoring, making sure it suited to CO₂RR and other gas-evolving cathode reactions where product gas needs to be safely vented and electrolyte condition monitored in real time.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eIn extended electrolysis experiments, catholyte composition is possible to drifts due to various reasons as carbonate\/bicarbonate species accumulate, pH shifts, and water crosses the membrane from anolyte to catholyte (or vice versa, depending on membrane chemistry). These effects are especially pronounced with AEM and BPM systems, compared to PEM systems, due to tendency of salt precipitation. \u003cbr\u003e\u003cbr\u003eThe five-port layout allows researchers to track these changes without interrupting the run: a dedicated sampling port supports in-line electrolyte analysis along with periodic pH and conductivity checks, while the separate gas vent keeps evolved cathode products (CO, H₂, or C₂+ hydrocarbons in CO₂RR systems) isolated from the liquid sampling line, avoiding cross-contamination of analytical measurements. This makes the reservoir equally suited to short screening experiments and multi-hour stability tests where catholyte condition is a key variable in interpreting Faradaic efficiency and product selectivity data.\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eSuggested Port Usage:\u003c\/strong\u003e 1. Catholyte Inlet (return from cell), 2. Catholyte Outlet (to pump\/cell), 3. Gas Vent (cathode-evolved gas release, e.g. CO, H₂, hydrocarbons), 4. Sampling Port, 5. Temperature or pH probing\u003c\/p\u003e\n\u003cdiv class=\"row display-flex\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/range-of-sizes-icon.svg\"\u003e\u003cbr\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eOne Reservoir-Three Functions\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eSupports Circulation, Ventilation, and In-line Analysis\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/chemically-inert-icon.svg\"\u003e\u003cbr\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eChemical Resistant\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eExcellent resistant across the full pH range\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/lock-sealing-icon.svg\"\u003e\u003cbr\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eEffective Sealing\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eSealed design minimising catholyte evaporation and gas ingress\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-xs-12 col-sm-4 col-md-3 text-center margin-top\"\u003e\n\u003cimg loading=\"lazy\" width=\"50\" height=\"50\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/large-tick-icon.svg\"\u003e\u003cbr\u003e\n\u003cp class=\"blue-heading no-margin text-center\"\u003eCompatibility\u003c\/p\u003e\n\u003cp class=\"text-center\"\u003eCompatible with Ossila and other MEA Electrolyzers, GDE Flow Cells, and PSE Electrolyzers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"specification\"\u003eSpecifications\u003c\/h2\u003e\n\u003chr\u003e\n\u003ctable style=\"width: 100%; height: 254.719px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth width=\"38.2%\" style=\"width: 56.8592%; height: 19.5938px;\"\u003eProduct Name\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003eCatholyte Reservoir\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003eSKU\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003eC2052D1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003eVolume\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003e100 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003eBody Material\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003eBorosilicate Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003eLid Material\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003ePTFE\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003ePort Material\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003ePEEK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 56.8592%; height: 19.5938px;\"\u003eNumber of Ports\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%; height: 19.5938px;\"\u003e5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 56.8592%;\"\u003ePort (inner) Diameter\u003c\/th\u003e\n\u003ctd style=\"width: 42.7798%;\"\u003e3 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cfigure\u003e\u003cimg alt=\"Diagram of 5-port Catholyte Reservoir (100 ml)\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-diagram.svg?\u0026amp;width=848\" width=\"600\"\u003e\n\u003cfigcaption\u003eDiagram of 5-port Catholyte Reservoir (100 ml)\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eUser Manual\u003c\/h3\u003e\n\u003cp class=\"pad-top-half-height\"\u003e\u003ca target=\"_blank\"\u003e\u003cimg alt=\"\" height=\"39\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/icon-manual.svg\" style=\"margin-right: 10px;\" width=\"30\"\u003eProduct Name User Manual\u003c\/a\u003e\u003c\/p\u003e\n\n\u003ch2 id=\"included\"\u003eIn the Box\u003c\/h2\u003e\n\u003chr\u003e\n\u003cdiv class=\"row pad-half-height\"\u003e\n\u003cdiv class=\"col-sm-12 col-md-6\"\u003e\n\u003cul\u003e\n\u003cli\u003eGlass Body\u003c\/li\u003e\n\u003cli\u003ePTFE Screw Caps with PEEK electrode secure screw\u003c\/li\u003e\n\u003cli\u003eCircular Sampling window septa\u003c\/li\u003e\n\u003cli\u003ePTFE rod 3mm air inlet\/ outlet stopper\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-sm-12 col-md-6\"\u003e\n\u003cul\u003e\n\u003cli\u003eO-rings\u003c\/li\u003e\n\u003cli\u003eSpare PEEK electrode secure screw\u003c\/li\u003e\n\u003cli\u003ePTFE tubing\u003c\/li\u003e\n\u003cli\u003eSampling Needle\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"gallery\"\u003eCatholyte Reservoir Gallery\u003c\/h2\u003e\n\u003chr\u003e\n\u003cdiv class=\"carousel-container carousel-gallery\"\u003e\n\u003cdiv class=\"carousel-track ease-in-out-transition\"\u003e\n\u003ca class=\"carousel-item\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/ptfe-catholyte-reservoir.jpg?Vwidth=1620\" title=\"Catholyte Reservoir\"\u003e \u003cimg alt=\"Catholyte Reservoir\" height=\"280\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/anolyte-reservoir.jpg?Vwidth=420\u0026amp;height=280\u0026amp;crop=center\" width=\"420\"\u003e \u003c\/a\u003e \u003ca class=\"carousel-item\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-ptfe-lid.jpg?width=1620\" title=\"Catholyte Reservoir (100 ml)\"\u003e \u003cimg alt=\"Catholyte Reservoir (100 ml)\" height=\"280\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-ptfe-lid.jpg?width=420\u0026amp;height=280\u0026amp;crop=center\" width=\"420\"\u003e \u003c\/a\u003e \u003ca class=\"carousel-item\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-setup.jpg?Vwidth=1620\" title=\"(100 ml) Catholyte Reservoir\"\u003e \u003cimg alt=\"(100 ml) Catholyte Reservoir\" height=\"280\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-setup.jpg?Vwidth=420\u0026amp;height=280\u0026amp;crop=center\" width=\"420\"\u003e \u003c\/a\u003e \u003ca class=\"carousel-item\" href=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-inlets.jpg?Vwidth=1620\" title=\"Catholyte Reservoir\"\u003e \u003cimg alt=\"Catholyte Reservoir\" height=\"280\" loading=\"lazy\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/catholyte-reservoir-inlets.jpg?Vwidth=420\u0026amp;height=280\u0026amp;crop=center\" width=\"420\"\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003ca class=\"carousel-left-control\" role=\"button\"\u003e \u003csvg class=\"icon icon-chevron-left\"\u003e\u003cuse href=\"#icon-chevron-left\"\u003e\u003c\/use\u003e\u003c\/svg\u003e \u003cspan class=\"sr-only\"\u003ePrevious\u003c\/span\u003e \u003c\/a\u003e \u003ca class=\"carousel-right-control\" role=\"button\"\u003e \u003csvg class=\"icon icon-chevron-right\"\u003e\u003cuse href=\"#icon-chevron-right\"\u003e\u003c\/use\u003e\u003c\/svg\u003e \u003cspan class=\"sr-only\"\u003eNext\u003c\/span\u003e \u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"pricing\"\u003ePricing and Options\u003c\/h2\u003e\n\u003chr\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth width=\"38.2%\"\u003eProduct Name\u003c\/th\u003e\n\u003cth width=\"30.9%\"\u003eProduct Code\u003c\/th\u003e\n\u003cth width=\"30.9%\"\u003ePrice\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCatholyte Reservoir\u003c\/td\u003e\n\u003ctd\u003eC2052D1\u003cbr\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"ossila-currency-exchange\"\u003e£200\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 id=\"related-products\"\u003eRelated Products\u003c\/h2\u003e\n\u003chr\u003e\n\u003cp\u003e[[collection handle=\"\" tags=\"\" limit=\"5\"]]\u003c\/p\u003e\n\n\u003cdiv class=\"collection-container\"\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/electrochemical-cells\"\u003e\n\u003cdiv class=\"collection-button background-ossila-blue\"\u003e\n \u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/electrochemical-cell-collection-design.png?v=1715167619\" loading=\"lazy\" height=\"109\" alt=\"Electrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectrochemical Cells\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/photoelectrochemical-cells\"\u003e\n\u003cdiv class=\"collection-button background-light-blue\"\u003e\n \u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/Photoelectrochemical-cells-collection-design.png?v=1715167619\" loading=\"lazy\" height=\"109\" alt=\"Photoelectrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003ePhotoelectrochemical\u003cbr\u003eCells\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003cdiv class=\"collection-tile\"\u003e\u003ca href=\"\/collections\/electrodes\"\u003e\n\u003cdiv class=\"collection-button background-ossila-blue\"\u003e\n \u003cimg width=\"150\" src=\"https:\/\/www.ossila.com\/cdn\/shop\/files\/Electrode-collection-design.png?v=1715167618\" loading=\"lazy\" height=\"109\" alt=\"Electrochemical Cell Collection\"\u003e\n\u003cp\u003e\u003cstrong\u003eElectrodes\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Ossila","offers":[{"title":"100 ml","offer_id":52156917055704,"sku":"C2052D1","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0287\/files\/catholyte-reservoir-product-photo.jpg?v=1788960112","url":"https:\/\/www.ossila.com\/products\/catholyte-reservoir","provider":"Ossila","version":"1.0","type":"link"}